Red algae

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pitts337

Harlequin Tusk
Joined
Oct 1, 2018
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1,146
Location
Lafayette
What y’all think this is. It’s only in a small part of the sand bed and one of my return nozzles
 

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mrmaytagg

Harlequin Tusk
Joined
Oct 27, 2013
Messages
1,050
Location
Lafayette, LA
Looks like cyano. Break your tank immediately lol.

Just kidding. Chemiclean will work if you follow instructions correctly. Or do a few water changes and let the tank balance itself out. Vacuum the mat to make you feel better about the look. The mat is just excess.

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